Crank case heater



Feb. 21, 1933. J. H. BARRETT ET AL CRANK CASE HEATER vFil-ed NOV. 25. 1931 ZSheet-Sheet l [f i 5 fi 19 LJLLLLIM www la 1o INVENTOKS John /feenfn Feb' 21 1933 J. H. BARRETT ET AL l,897,995

CRANK CASE HEATER Filed Nov. 23, 1931 2 Sheets-Sheet 2 Tu nl :N vENToRs James H. Ealleflfw'll/ Jo/zn Keenan Attrney Patented Feb. 21, 1933 JAMES HENRY BARRETT ANI) JOHN KEENAN, OF KINGSTON, ONTARIO, CANADA CRANE casa HEATER Application 1ed November 23, 1931, Serial No. 576,932, and in Canada Gctober 13, 1931.

This invention relates to improvements in an automobile engine Warming device. lts primary object being to provide a means of warming the oil in the sump of the engine and thus facilitate starting.

A further object is to provide a device using hot water as its heating medium. The said hot water being held against the underneath and four sides of the oil sump of the engine with means for filling and draining the same.

A still further object is to provide a hot water container held against the oil pan so that the heat may radiate up through the oil and the engine, and after the water is drawn off will retain the heat for a reasonable period of time when the car is parked on a cold day and a further object is, it is a most convenient method of thawing the oil pump when frozen. With these and other objects in view that may appear while the description proceeds the invention consists in the novel construe tion and arrangement of parts as hereinafter more specifically set forth claimed and shown 5 in the accompanying drawings forming a part of this present application and in which Fig. 1 is a sketch view of an automobile engine having the invention attached thereto.

Fig. 2 is a longitudinal sectional view through the heating device.

Fig. 3 shows a cross section of the same.

Fig. 4 is an end view showing the supporting means.

Fig. 5 is a perspective view of the extension handle for the drain pet cock.

Referring more in detail to the drawings in which similar reference characters designate corresponding parts throughout the several views it will be seen the invention consists in a metal water container 10 having a suitable framework 11 therein, and an outer metal casing 12 having a spacing framework 13 between said casing and the water container 10. A dead air space 14 is thus formed between the casing 12 and container 10, or it may be found preferable to have the said space packed with asbestos wool or other non-conducting material. Hot water is poured into the container through the funnel 15 which is conveniently located under the hood of the automobile and is supported in the' framework 11. The container is drained by means of a pet cock .16 and its connecting tube 17. An overflow pipe 18 is also provided and is secured to both container and casing as shown.

forms a means of tightening the device in position. v

An extension handle 26 for the pet cock 16 is provided and consists of a long member having a slot 27 cut diametrically in one end of the same said slot litting the key of the pet cock 16.` v The other end28 being squared to make an easier grip for turning. This handle will be of sucient length to conveniently reach the mobile.

It will readily be seen that although specifc details of the device are shown herein the design and construction of the same will have to be modiiied to suit different makes of pet cock from the side of the autoautomobiles and therefore the drawings rep- 8.0

resent only a general idea of the invention.

It is believed that the construction and advantages of the structure shown may be apparent from the foregoing paragraphs taken in conjunction with the accompanying drawings without further detailed description.

While the preferred embodiment of the invention has been disclosed it is understood that minor changes in the details of construcerating elements may be resorted to within the scope of what is claimed without departing from the spiritof the invention.

Vhat we claim is 1. 1n an automobile engine warming detion, combination and arrangement of co-op "390 vice of the type described, a water container designed to-iit to the outside surface of the bottom and four sides of the oil pan, an outer casing, spacing strips therebetween said casing closed all around to form a dead air space therein and means supporting the same in position.

2. In an automobile engine warming device as described an inner watery container itted to the bottom and four sides of the oil pan, an outer casing on the four sides and bottom of the same and in spaced relation' thereto said casing being closed in around the top edge of same forming a dead air space, and a funnel extending upward from the water container, for lling the container.

3. In an automobile engine warming device as described an inner water container 'fitted to the bottom and four sides of the oil pan, an outer casing on the four sides and bottom of the same and in spaced relation thereto said casing being closed in around the top edge of same forming adead air space, a funnel extending upward from the water container, a pet cock having connection with the bottom of the inner container and an overflow pipe secured in the container and extending through the air space and outer casing.

4. In an automobile engine warming device as describedy an inner water container fitted to the bottom and four sides of the oil pan, an outer casing on the four sides and bottom of the same and in spaced relation thereto said casing being closed in around the top edge of' same forming a dead air space, a funnel extending upward from the inner container, a pet cock having connection with the bottom of the inner container an'overflow pipe secured in the container and extending through the airspace and outer casing, and frame attaching members for supporting the device rigidly in position.

In testimony whereof we affix our signatures.

JAS. HENRY BARRETT. JOHN KEENAN. 

